If you need to use Linux GPIO in Ruby, please see denko-piboard or lgpio instead.
This gem only contains some (probably bad) code, extracted from an old version of denko-piboard. I started building that on top of libgpiod directly, but eventually settled on lgpio which has more features and was simpler to implement.
At some point, I will probably finish the libgpiod implementation, and substitute it where applicable in denko-piboard, in place of lgpio. It performs ~15-20% better, but lgpio + YJIT is already pretty fast, so this isn't a priority.
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We found that gpiod demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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